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Finding the Fourth Proportional to 141,469.80, 212,201.66 and 66,548.44

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Solution

The fourth proportional to 141,469.80, 212,201.66 and 66,548.44 is: 99,821.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,469.80 : 212,201.66 = 66,548.44 : x
  2. Step 2: Convert to fraction form
    141,469.80/212,201.66 = 66,548.44/x
  3. Step 3: Cross multiply
    141,469.80x = 212,201.66 × 66,548.44
  4. Step 4: Simplify right side
    141,469.80x = 14,121,689,438.41
  5. Step 5: Solve for x
    x = 14,121,689,438.41/141,469.80
  6. Step 6: Final answer
    x = 99,821.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.